Implement encoder factory as class.

src/Encoder/EncoderFactory.php

@@ -0,0 +1,63 @@
+<?php
+
+/**
+ * Leaflet maps for Contao CMS.
+ *
+ * @package    contao-leaflet-maps
+ * @author     David Molineus <david.molineus@netzmacht.de>
+ * @copyright  2016-2017 netzmacht David Molineus. All rights reserved.
+ * @license    LGPL-3.0 https://github.com/netzmacht/contao-leaflet-maps/blob/master/LICENSE
+ * @filesource
+ */
+
+declare(strict_types=1);
+
+namespace Netzmacht\Contao\Leaflet\Encoder;
+
+use Netzmacht\JavascriptBuilder\Encoder;
+use Netzmacht\JavascriptBuilder\Encoder\ChainEncoder;
+use Netzmacht\JavascriptBuilder\Output;
+use Netzmacht\JavascriptBuilder\Symfony\EventDispatchingEncoder;
+use Symfony\Component\EventDispatcher\EventDispatcherInterface as EventDispatcher;
+
+/**
+ * Class EncoderFactory.
+ *
+ * @package Netzmacht\Contao\Leaflet\Encoder
+ */
+final class EncoderFactory
+{
+    /**
+     * Definition builder event dispatcher.
+     *
+     * @var EventDispatcher
+     */
+    private $dispatcher;
+
+    /**
+     * EncoderFactory constructor.
+     *
+     * @param EventDispatcher $dispatcher Definition builder event dispatcher.
+     */
+    public function __construct(EventDispatcher $dispatcher)
+    {
+        $this->dispatcher = $dispatcher;
+    }
+
+    /**
+     * Create the encoder.
+     *
+     * @param Output $output Output object.
+     *
+     * @return Encoder
+     */
+    public function __invoke(Output $output): Encoder
+    {
+        $encoder = (new ChainEncoder())
+            ->register(new Encoder\MultipleObjectsEncoder())
+            ->register(new EventDispatchingEncoder($this->dispatcher))
+            ->register(new Encoder\JavascriptEncoder($output, JSON_UNESCAPED_SLASHES));
+
+        return $encoder;
+    }
+}